221647016341346 has 16 divisors (see below), whose sum is σ = 332519962065984. Its totient is φ = 110807029738704.

The previous prime is 221647016341343. The next prime is 221647016341369. The reversal of 221647016341346 is 643143610746122.

It is a junction number, because it is equal to n+sod(n) for n = 221647016341294 and 221647016341303.

It is not an unprimeable number, because it can be changed into a prime (221647016341343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677691371 + ... + 678018353.

It is an arithmetic number, because the mean of its divisors is an integer number (20782497629124).

Almost surely, 2^{221647016341346} is an apocalyptic number.

221647016341346 is a deficient number, since it is larger than the sum of its proper divisors (110872945724638).

221647016341346 is a wasteful number, since it uses less digits than its factorization.

221647016341346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376345.

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 221647016341346 in words is "two hundred twenty-one trillion, six hundred forty-seven billion, sixteen million, three hundred forty-one thousand, three hundred forty-six".